TABLE 1.
Characteristics of Conventional and TB PET Cohorts
| Parameter | Conventional PET cohort | TB PET cohorts | |
|---|---|---|---|
| Standard dose | Ultralow dose | ||
| Subjects (n) | 15 | 15 | 15 |
| Sex (%) | |||
| Male | 40 | 40 | 53 |
| Female | 60 | 60 | 47 |
| Age (y) | |||
| Mean ± SD | 59.0 ± 10.4 | 49.7 ± 14.7 | 45.0 ± 11.1 |
| Range | 33–72 | 26–78 | 26–62 |
| Body mass index (kg/m2) | |||
| Mean ± SD | 25.3 ± 3.1 | 29.1 ± 5.7 | 25.8 ± 3.4 |
| Range | 19.9–28.7 | 19.4–37.0 | 20.4–32.3 |
| Cardiovascular risk factors | |||
| Arterial hypertension (n) | 7 (47%) | 3 (20%) | 1 (7%) |
| Hypercholesterolemia (n) | 3 (20%) | 5 (33%) | 4 (27%) |
| Diabetes mellitus (n) | 2 (13%) | 0 | 0 |
| History of smoking (n) | 9 (60%) | 1 (7%) | 1 (7%) |
| Pack-years* | |||
| Mean ± SD | 44 ± 22 | 15 | 20 |
| Range | 10–80 | ||
| Prior myocardial infarction (n) | 4 (27%) | 0 | 0 |
| Prior stroke (n) | 1 (7%) | 0 | 0 |
| Prior cardiovascular intervention (n) | 5 (33%) | 0 | 0 |
| Family history of IHD (n) | 4 (27%) | 4 (27%) | 5 (33%) |
| Statin medication (n) | 7 (47%) | 2 (13%) | 2 (13%) |
| Injected dose | 3 (20%) | 1 (7%) | |
| Mean ± SD | 307.2 ± 11.5 | 372.4 ± 17.0 | 19.6 ± 1.7 |
| Range | 291.1–328.6 | 337.3–393.8 | 17.2–23.5 |
*There was only 1 subject with history of smoking within each of these 2 cohorts; there is no SD and range is equal to the mean.
SD = standard deviation; IHD = ischemic heart disease.
Cardiovascular risk factors were available for 11 subjects in standard-dose cohort and 12 subjects in ultralow-dose cohort and in all patients of conventional cohort.